Bathroom planning for new construction: layout and design

Toilet by the window is always an advantage in many aspects

It's a pity that the drain has to be on the right side of the plan, if I interpret that correctly. Otherwise, I would have suggested swapping the bathtub and the toilet with appropriate soundproofing to the master bedroom. Below the bathroom on the left side of the plan are the guest toilet and the utility room, so the drain would be well placed there too.

Maybe as a little inspiration, this is how we solved it, with even less space (dimensions are just under 3.5m x 3.5m):

We are very satisfied with it. Where the single washbasin is drawn, we have a double washbasin. Maybe you like something along those lines too. We really like that you have privacy on the toilet in the back corner. I don’t find the shower and toilet directly opposite each other very nice in your developer’s plan.

Thank you for your contribution. Isn’t it too dark for you in the shower, or do you always have the light on?

It's a pity that the drain has to be on the right side of the plan, if I interpret that correctly. Otherwise, I would have suggested swapping the bathtub and the toilet with appropriate sound insulation towards the master bedroom. Below the bathroom, on the left side of the plan, there is the guest WC and the utility room, so the drain would be well placed there too.

Then I'm actually not sure whether the drain is fixed there or if it's just the shaft for the electrical system. This option was also under discussion.. hmm.. What do you mean by sound insulation? I understand why, just not how to implement it in practice (materials etc.).

I don’t know exactly how this can be done. I just want to point out that you pay attention to it and don’t wake up annoyed at night if a child or your partner goes to the toilet and you might hear the flush. From my experience, downpipe noises are much louder in the room below, where the water actually rushes through. We haven’t insulated anything there, and in the utility room in the basement, I sometimes actually get startled when someone above me flushes the toilet :) I’m sure others who know more about this can add something.

Which dimensions are correct now? The ones in the bathroom planned by yourself? Or the ones in the building plan? It is about the location of the door and window. How large is the window and the sill height?